<template>
  <div class="app-container">
    <div class="search-container">
      <el-form :model="searchObj" :inline="true">
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="searchObj.roleName" placeholder="角色名称" @keyup.enter="fetchData" />
        </el-form-item>
        <el-form-item>
          <el-button class="filter-item" type="primary" icon="el-icon-search" @click="fetchData()">
            搜索
          </el-button>
          <el-button @click="resetData"> <i-ep-refresh />重置 </el-button>
        </el-form-item>
      </el-form>
    </div>

    <el-card>
      <template #header>
        <el-button type="success" @click="add" icon="el-icon-plus"><i-ep-plus />添 加</el-button>
      </template>
      <!-- 表格 -->
      <el-table v-loading="listLoading" :data="list" stripe border style="width: 100%; margin-bottom: 20px;"
        max-height="420" @selection-change="handleSelectionChange">

        <el-table-column type="selection" />

        <el-table-column label="序号" width="70" align="center">
          <template slot-scope="scope">
            {{ (page - 1) * size + scope.$index + 1 }}
          </template>
        </el-table-column>

        <el-table-column prop="roleName" label="角色名称" />
        <el-table-column prop="roleCode" label="角色编码" />
        <el-table-column prop="description" label="角色描述" :show-overflow-tooltip="true" />
        <el-table-column prop="createTime" label="创建时间" width="160" />
        <el-table-column label="操作" width="200" align="center">
          <template slot-scope="scope">
            <el-button type="primary" :disabled="scope.row.id == 1" icon="el-icon-edit" size="mini"
              @click="edit(scope.row.id)" title="修改" />
            <el-button type="danger" :disabled="scope.row.id == 1" icon="el-icon-delete" size="mini"
              @click="removeDataById(scope.row.id)" title="删除" />
            <el-button type="warning" :disabled="scope.row.id == 1" icon="el-icon-baseball" size="mini"
              @click="openAuthAssagin(scope.row.id)" title="分配权限" />
          </template>
        </el-table-column>
      </el-table>
      <el-pagination @current-change="fetchData" @size-change="handleSizeChange" :current-page="page"
        :page-sizes="[10, 20, 50, 100]" :page-size="size" layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </el-card>

    <!--添加或者修改弹窗-->
    <el-dialog :title="dialogTitle" :visible.sync="dialogVisible" width="40%">
      <el-form ref="dataForm" :rules="roleRules" :model="sysRole" label-width="100px" style="padding-right: 40px;">
        <el-form-item label="角色编码" prop="roleCode">
          <el-input ref="roleCode" v-model="sysRole.roleCode" placeholder="请输入角色编码" />
        </el-form-item>
        <el-form-item label="角色名称" prop="roleName">
          <el-input ref="roleName" v-model="sysRole.roleName" placeholder="请输入角色名称" />
        </el-form-item>
        <el-form-item label="角色描述">
          <el-input type="textarea" :rows="3" v-model="sysRole.description" placeholder="请输入描述信息" />
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false" icon="el-icon-refresh-right">取 消</el-button>
        <el-button type="primary" icon="el-icon-check" @click="saveOrUpdate()">确 定</el-button>
      </span>
    </el-dialog>

    <!--授权界面-->
    <el-dialog title="角色授权" :visible.sync="authDialogVisible" width="40%">
      <el-tree style="margin: 20px 0" ref="tree" :data="sysMenuList" node-key="id" show-checkbox default-expand-all
        :props="defaultProps" />
      <div style="padding: 20px 20px;">
        <el-button :loading="loading" type="primary" icon="el-icon-check" size="mini" @click="saveAuth">保存</el-button>
        <el-button @click="authDialogVisible = false" size="mini" icon="el-icon-refresh-right">取消</el-button>
      </div>
    </el-dialog>
  </div>
</template>
<script>
//引入定义接口的js文件
import api from '@/api/system/role'
import menuApi from '@/api/system/menu'

export default {
  //定义初始值
  data() {
    const validateRoleCode = (rule, value, callback) => {
      if (!value) {
        callback(new Error('角色编码不能为空'))
      } else if (value.length > 20) {
        callback(new Error('角色编码不能超过20字符'))
      } else {
        callback()
      }
    }
    const validateRoleName = (rule, value, callback) => {
      if (!value) {
        callback(new Error('角色名称不能为空'))
      } else if (value.length > 20) {
        callback(new Error('角色名称不能超过20字符'))
      } else {
        callback()
      }
    }

    return {
      listLoading: false,//是否显示加载
      list: [],//角色列表
      total: 0,//总记录数
      page: 1,//当前页
      size: 10,//每页显示记录数
      searchObj: {},//条件查询封装对象

      dialogVisible: false,//弹出框
      sysRole: {}, //封装添加表单数据
      selectValue: [], //复选框选择内容封装数组
      dialogTitle: "添加角色",
      authDialogVisible: false,
      sysMenuList: [], // 所有
      defaultProps: {
        children: 'children',
        label: 'name'
      },
      roleRules: {
        roleCode: [{ required: true, trigger: 'blur', validator: validateRoleCode }],
        roleName: [{ required: true, trigger: 'blur', validator: validateRoleName }]
      },
    }
  },
  //页面渲染之前执行
  created() {
    //调用列表方法
    this.fetchData()
  },
  methods: {//具体方法
    handleSizeChange(val) {
      this.size = val
    },
    clearValidate() {
      this.$nextTick(() => {
        // 清空校验规则
        this.$refs.dataForm.clearValidate()
      })
    },

    //跳转分配菜单权限
    showAssignAuth(row) {
      this.$router.push('/system/assignAuth?id=' + row.id + '&roleName=' + row.roleName);
    },
    //复选框发生变化执行方法
    handleSelectionChange(selection) {
      this.selectValue = selection
      //console.log(this.selectValue)
    },
    //批量删除
    batchRemove() {
      //判断
      if (this.selectValue.length == 0) {
        this.$message.warning('请选择要删除的记录！')
        return
      }
      this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        //数组
        var idList = []
        //获取多个复选框对应id，封装到数组里面
        // [1,2,3]
        for (var i = 0; i < this.selectValue.length; i++) {
          var obj = this.selectValue[i]
          //id值
          var id = obj.id
          //放到数组里面
          idList.push(id)
        }
        api.batchRemove(idList).then(response => {
          //提示
          this.$message({
            type: 'success',
            message: '删除成功!'
          });
          //刷新
          this.fetchData()
        })
      })
    },
    //修改-数据回显
    edit(id) {   
      this.dialogTitle = "修改角色"
      //弹出框
      this.dialogVisible = true
      api.getRoleId(id).then(response => {
        this.sysRole = response.data
      })
      this.clearValidate()
    },
    //点击确定
    saveOrUpdate() {
      this.$refs.dataForm.validate(valid => {
        if (valid) {
          //判断添加还是修改
          if (!this.sysRole.id) {
            //添加
            this.saveRole()
          } else {
            this.updateRole()
          }
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    //修改的方法
    updateRole() {
      api.update(this.sysRole)
        .then(response => {
          //提示
          this.$message({
            type: 'success',
            message: '修改成功!'
          });
          //关闭弹框
          this.dialogVisible = false
          //刷新页面
          this.fetchData()
        })
    },
    //添加的方法
    saveRole() {
      api.saveRole(this.sysRole)
        .then(response => {
          //提示
          this.$message({
            type: 'success',
            message: '添加成功!'
          });
          //关闭弹框
          this.dialogVisible = false
          //刷新页面
          this.fetchData()
        })
    },
    //点击添加，弹出框
    add() {
      this.dialogTitle = "添加角色"
      this.dialogVisible = true
      this.sysRole = {}
      this.clearValidate()
    },
    //删除
    removeDataById(id) {
      this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        //调用方法删除
        api.removeId(id)
          .then(response => {
            //提示
            this.$message({
              type: 'success',
              message: '删除成功!'
            });
            //刷新
            this.fetchData()
          })
      })
    },
    //重置
    resetData() {
      //清空表单
      this.searchObj = {}
      //查询所有数据
      this.fetchData()
    },
    //条件分页查询列表
    //pageNum 查询页数
    fetchData(pageNum = 1) {
      this.listLoading = true
      //页数赋值
      this.page = pageNum
      //ajax
      api.getPageList(this.page, this.size, this.searchObj)
        .then(response => {
          //每页数据列表
          this.list = response.data.list
          //总记录数
          this.total = response.data.total
        }).finally(() => {
          this.listLoading = false;
        })
    },
    /**
     * 打开授权界面
     */
    openAuthAssagin(id) {
      this.authDialogVisible = true
      this.getRoleAuthList(id)
      this.sysRole.id = id
    },
    /*
      获取角色权限信息
      */
    getRoleAuthList(roleId) {
      menuApi.toAssign(roleId).then(result => {
        const sysMenuList = result.data
        this.sysMenuList = sysMenuList
        const checkedIds = this.getCheckedIds(sysMenuList)
        console.log('getPermissions() checkedIds', checkedIds)
        this.$refs.tree.setCheckedKeys(checkedIds)
      })
    },

    /*
    得到所有选中的id列表
    */
    getCheckedIds(auths, initArr = []) {
      return auths.reduce((pre, item) => {
        if (item.select && item.children.length === 0) {
          pre.push(item.id)
        } else if (item.children) {
          this.getCheckedIds(item.children, initArr)
        }
        return pre
      }, initArr)
    },

    /*
    保存权限列表
    */
    saveAuth() {
      //获取到当前子节点
      //const checkedNodes = this.$refs.tree.getCheckedNodes()
      //获取到当前子节点及父节点
      const allCheckedNodes = this.$refs.tree.getCheckedNodes(false, true);
      let idList = allCheckedNodes.map(node => node.id);
      console.log(idList)
      let assginMenuVo = {
        roleId: this.sysRole.id,
        menuIdList: idList
      }
      this.loading = true
      menuApi.doAssign(assginMenuVo).then(result => {
        this.loading = false
        this.$message.success(result.$message || '分配权限成功')
        this.fetchData()
        // this.$router.push('/system/sysRole');
      }).finally(() => {
        this.authDialogVisible = false;
      })
    }
  }
}
</script>